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CPAN::INDEX problem

by Raymond (Novice)
on Jun 11, 2013 at 21:20 UTC ( #1038343=perlquestion: print w/ replies, xml ) Need Help??
Raymond has asked for the wisdom of the Perl Monks concerning the following question:

I use win7, with strawberry and Dwin, but my system ask for, CPAN::Index version 1.93 required--this is only version 0.01. I have downloded CPAN::Index 2.0, but I don't know to install it, or make it run, can someone give me a hand?
The second question is about this small program
#!//usr/bin/perl
use strict;
use warnings;
#programa 1
print "hello, world.\n"
#programa 2
print "Gimme a number: ";
0.00000
chomp($n = <STDIN>); #$n now holds "0.00000";

print "The value $n is", $n ? "TRUE" : "False", "\n";
My small system ask for a package but I don't know wich, one tip pls. Best Regards Raymond

Comment on CPAN::INDEX problem
Re: CPAN::INDEX problem
by ww (Bishop) on Jun 11, 2013 at 22:24 UTC
    I don't understand your question about your "small program," but I can tell you that as posted, it won't compile NOR "ask for a package NOR anything else expect tell you that $n "requires explicit package name." That means you didn't declare it with my or our or anything else that would satisfy strict.

    On the possibility that the program is intended to look something like this:

    #!//usr/bin/perl use strict; use warnings; # 1038343 #programa 1 print "hello, world.\n"; #programa 2 print "Gimme a number: "; # 0.0000; my $n = 0.00000; chomp($n = <STDIN>); #$n now holds whatever the input is +at STDIN print "The value $n is", $n ? "TRUE" : "False", "\n";

    Note the semi-colons... and the revised comment about the value of $n: Yours would be accurate only if the input were 0.00000...
    Otherwise the script behaves as expected.

    One other possibility occurs -- that that line containing 0.00000 is intended to reflect user input. If so, refer to the above about missing semicolons and declarations.

    For a clear explanation of your final line of code, using the ternary operator, please see http://perldoc.perl.org/perlop.html for its syntax and use.

    Also, please read and heed the instructions around the text-input box -- where you typed this node. Use <c>...</c> tags around your code... and per Markup in the Monastery (which you should also read), please don't use <pre>...</pre> tags.

    If you didn't program your executable by toggling in binary, it wasn't really programming!

Re: CPAN::INDEX problem
by syphilis (Canon) on Jun 11, 2013 at 22:43 UTC
    CPAN::Index version 1.93 required--this is only version 0.01

    I think you'll find that you have 2 versions of CPAN::Index.
    Version 0.01 will be in perl/site/lib/CPAN/Index.pm, and a version that is later than 1.93 in perl/lib/CPAN/Index.pm.
    Remove the file perl/site/lib/CPAN/Index.pm (ie version 0.01) and that particular problem should be fixed.

    But make sure you don't remove perl/lib/CPAN/Index.pm.

    Cheers,
    Rob
Re: CPAN::INDEX problem
by DrHyde (Prior) on Jun 12, 2013 at 10:43 UTC
    Don't download it by hand. Download and install it with cpan CPAN::Index.

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